PHILADELPHIA (AP) - The Philadelphia Eagles shocked no one by trading up in the first round. What they dealt and whom they selected, however, were both surprises.

The three-time NFC East champions took Arkansas offensive lineman Shawn Andrews with the 16th pick, after dealing No. 28 and their second-round choice - No. 58 overall - to the San Francisco 49ers.

The 6-foot-4, 345-pound Andrews, who weighed as much as 401 pounds in his college career, is expected to immediately add size and depth to the Eagles' interior line.

"I had no idea whatsoever (the Eagles would trade up)," Andrews said. "I was talking to some guys who have played in the NFL; they said all the visits they had taken, they didn't even get drafted by the teams (they visited), so I wasn't even expecting it."

The 22-year-old Andrews, who didn't visit the Eagles in the weeks leading up to the draft, impressed coach Andy Reid on film and offensive line coach Juan Castillo during a dinner at the scouting combine.

Unlike the Eagles' last three first-round picks - one combined start in their rookie seasons - Andrews will be given a chance to start immediately. Reid said that, most likely, the former tackle will do so at guard.

"He can play offensive guard and I have no problem putting him in that position," Reid said. "I will give him an opportunity this year."

If Andrews does indeed move to guard, he may be competing with last year's starter, John Welbourn.

Welbourn, who last week was rumored to have been part of the deal with San Francisco, told the Eagles earlier this month that he was unhappy with his contract situation and wanted a new deal. When the team refused, Welbourn asked to be dealt. He then made his displeasure with the organization public on Friday in a radio interview, during which he questioned Reid's recent drafts.

But Reid said the drafting of Andrews had little to do with Welbourn's unhappiness.

"I'm disappointed in (Welbourn's) comments, absolutely," Reid said. "But I'm not going to make a rash decision because of John Welbourn. Our eyes have been on (Andrews) for a while, long before John let us in on his decision."

Both Reid and vice president of player personnel Tom Heckert said Andrews was rated highly on their lists and they did not believe he would still be on the board at No. 28. The Miami Dolphins, who held the 20th pick, had also expressed interest in Andrews.

"He was the one," Reid said when asked if the team moved up specifically for Andrews.

The Eagles were aggressive in their pursuit of Andrews despite several risk factors.

Aside from his weight struggles, Andrews also developed polyps in his nasal cavities last season, making breathing difficult during games and practices. Andrews left the Razorbacks after the regular season and he watched their Independence Bowl victory over Missouri from the stands.

Andrews took medication for the growths, which he said are no longer a factor, but they could flare up again. If that happens, Andrews said he could have them surgically removed, which would leave him sidelined for a week.

But, late last season, the condition had more than a physical effect on Andrews.

"With the sinus condition I had, I felt like everybody was turning against me after the doctor advised me not to play in the (Independence Bowl)," said Andrews. "(The Arkansas coaches) knew about it. I just didn't want to keep talking about it and having them think I'm a big baby."

Andrews' health issues only compounded his personal struggles, which began at the beginning of his sophomore season.

In 2002, Andrews' mother lost her job, leaving the lineman wondering whether to end his college career to help his family financially. He instead decided to remain on the team until the end of his junior year, when a lucrative NFL contract was waiting.

"They made a good choice in selecting me with the 16th overall pick," Andrews said. "It's a great time for me to get in there and try to do something at the next level and compete."